CN109668000B

CN109668000B - Intelligent liquid leakage prevention cooling pipeline quick connector for new energy automobile

Info

Publication number: CN109668000B
Application number: CN201910136499.1A
Authority: CN
Inventors: 席久恒; 高晓华
Original assignee: Jinan Gubang Information Technology Co ltd
Current assignee: Jinan Gubang Information Technology Co ltd
Priority date: 2019-02-25
Filing date: 2019-02-25
Publication date: 2020-07-17
Anticipated expiration: 2039-02-25
Also published as: CN109668000A

Abstract

The invention discloses a quick connector for a leakage-proof cooling pipeline of a new energy automobile, which mainly comprises a screwing shell, a connecting pipe shell, an elastic clamping sleeve, a stress sheet, a releasing mechanism and a sealing ring, wherein the releasing mechanism consists of a releasing button, a limiting clamping block and a releasing spring, the screwing shell is connected with one end of the elastic clamping sleeve and is provided with the releasing button, and the connecting pipe shell is connected with the other end of the elastic clamping sleeve and is provided with the elastic releasing mechanism. The invention correspondingly installs the strain gauge on the three-section elastic ferrule, which not only has the locking function to the male connector, but also solves the problem of liquid leakage at the pipe joint when the automobile is in motion. When the quick connector is detached, the groove part of the screwing shell is extruded. The invention has simple operation and reliable performance.

Description

Intelligent liquid leakage prevention cooling pipeline quick connector for new energy automobile

Technical Field

The invention relates to the field of new energy automobile manufacturing, in particular to a quick connector for a cooling pipeline.

Background

With the increasing consumption of non-renewable resources, especially the consumption of petroleum resources, people have to be considered for the sustainable development of the automobile industry, and new energy automobiles will become the mainstream of automobile development in decades before the new century and become the consensus of all the industry in the automobile industry. Electric vehicles are rapidly developing as a means of transportation using clean energy, but the problem of cooling is becoming more and more prominent. The present electric automobile provides higher requirement to the heat dispersion of battery package subassembly, because the convenience of cooling tube way dismouting is emphasized in the production, connects most simple structure, damages easily, the condition that joint department coolant liquid was revealed often appears. Therefore, the cooling pipeline joint influences the heat dissipation of the battery pack assembly of the electric automobile to a great extent.

Disclosure of Invention

The invention solves the technical problem of providing a quick connector for a cooling pipeline, which ensures the locking reliability and prevents falling off under the requirement of conveniently disassembling and assembling the pipeline and simultaneously monitors the liquid leakage condition of a pipe joint in the motion of an automobile.

The technical scheme adopted by the invention is as follows:

a quick connector of new energy automobile intelligence leak protection liquid cooling pipeline: the connecting pipe comprises a screwing shell, a connecting pipe shell, three elastic clamping sleeves, a stress sheet and a male head;

one end of the male head penetrates through the screwing shell and is installed in the connecting pipe shell; the other end is positioned outside the screwing shell; each elastic cutting sleeve comprises a main body part, the inner wall of the main body part is a circular arc surface, one end of the main body part is provided with an elastic-plastic elastic sheet with a first upright post, and the elastic-plastic elastic sheet deforms when stressed and restores to the original shape when not stressed; the other end of the second upright post is provided with a second upright post with a round hole; the arc surfaces of the main body parts of the three elastic clamping sleeves are tightly attached to the male cylindrical surface under the elastic action of the elastic-plastic elastic sheets, and the three elastic clamping sleeves are sequentially arranged along the circumferential direction of the male cylindrical surface; the first upright post is inserted on the screwing shell, and a rotational degree of freedom is arranged between the first upright post and the screwing shell; the circular hole of the second upright post is matched with a third upright post on the connecting pipe shell; the upper end face of the main body part of the elastic clamping sleeve is clamped with the inner end face of the male head to realize axial fixation; the outer side wall of the main body part is provided with a rectangular groove, so that the elastic-plastic elastic sheet of the elastic clamping sleeve is prevented from interfering with the main body part when being deformed; and the outer side wall of the elastic-plastic elastic sheet is provided with a stress sheet; the stress sheet is connected with an external ECU through a lead.

Furthermore, the quick connector for the intelligent leakage-proof cooling pipeline of the new energy automobile further comprises a release mechanism, the release mechanism comprises a support frame, a limiting clamping block, a release spring and a release button, a limiting hole is formed in the side wall of the screwing shell, the release button is placed in the limiting hole, the support frame with a circular hole is arranged on the upper end face of the connecting pipe shell, the support frame is matched with the release spring and the limiting clamping block, and the limiting clamping block is in contact with the inner side wall of the screwing shell under the elastic force action of the release spring.

Further, it is equipped with convex smooth arch to revolve to twist casing lower extreme lateral wall along the circumferencial direction take over casing upper end inner wall along the circumferencial direction and be equipped with convex smooth recess, revolve to twist casing arch and take over casing recess cooperation joint fixed.

Furthermore, the inner wall of the upper end of the screwing shell is provided with three cylindrical columns with round holes, the round holes of the three cylindrical columns are matched with one ends of the three first columns, and the three first columns have rotational freedom degrees; the other end of the first upright post is inserted in the groove of the connecting pipe shell.

Furthermore, for smooth installation, an arc-shaped inclined plane is arranged at the contact end of the limiting clamping block of the release mechanism and the screwing shell.

Furthermore, a circular hole is formed in the lower end face of the joint shell and connected with the output end connector of the strain gauge connecting lead.

Further, in order to ensure the sealing performance of the pipeline joint, an arc-shaped groove is formed in the end face of the inner side wall of the connecting pipe shell along the circumferential direction and used for placing a sealing ring; when the male head is inserted, the side cylindrical surface of the male head is in close contact with the sealing ring.

Further, in order to improve the axial locking reliability, preferably, a chamfer is not arranged between the lower end face of the main body part of the elastic cutting sleeve and the side face of the main body part of the elastic cutting sleeve, so that the arc face of the elastic cutting sleeve is completely attached to the male cylindrical face.

Furthermore, for smooth installation, an inclined surface structure is arranged on the inner arc surface of the upper end surface of the main body part of the elastic cutting sleeve.

Furthermore, the outer side wall of the screwing shell is provided with two rectangular grooves for screwing the screwing shell.

By adopting the structure, after the screwing shell, the connecting pipe shell, the elastic clamping sleeves, the stress sheet, the releasing mechanism and the sealing ring are clamped and fixed, when the quick-plug connecting device is connected with the male head, the rectangular groove on the outer side wall of the screwing shell is pinched and rotated anticlockwise, the elastic sheets of the three elastic clamping sleeves are driven by the screwing shell to generate plastic deformation, the upright ends of the three elastic clamping sleeve main body parts with the round holes are pulled by the corresponding elastic sheets to rotate, the three elastic clamping sleeves simultaneously move outwards along the radial direction, the limiting clamping block of the releasing mechanism rotates along with the rotating of the screwing shell when the limiting clamping block rotates to the limiting hole of the screwing shell, the limiting clamping block pushes out the releasing button under the action of the elastic force of the releasing spring, the limiting clamping block is clamped in the limiting hole, the screwing shell and the connecting pipe shell are relatively fixed, the quick-plug connecting head and the male head, the screwing shell rebounds under the action of elastic force of the elastic pieces of the three elastic clamping sleeves to enable the screwing shell to be in a closed state, the inner arc surfaces of the three elastic clamping sleeves and the outer cylindrical surface of the male head are abutted together, the male head is radially fixed under the action of the elastic force of the three elastic pieces, the lower end surface of each elastic clamping sleeve and the lower end surface of the male head are tightly attached to the axially fixed male head, the step of detaching the male head is consistent with that of installing the male head, the operation is simple and convenient, the locking reliability is high, and the installation stability is.

In order to solve the problem that the coolant is leaked due to the fact that the male head is not clamped by the pipeline connector, stress pieces are correspondingly arranged on the three elastic clamping sleeves to monitor the leakage situation, the plastic deformation degrees of the elastic pieces of the three elastic clamping sleeves are consistent when the pipeline connector is normally matched with the male head, when the leakage situation possibly occurs due to the fact that the pipeline connector is deviated due to violent vibration in the moving process of an automobile, the plastic deformation degrees of the elastic pieces of the three elastic clamping sleeves are inconsistent, data differences are generated due to the fact that the deformation degrees of the three stress pieces are inconsistent, the stress pieces are connected with an automobile ECU through wires, the ECU analyzes and processes the three inconsistent data, and a leakage alarm signal is sent.

The invention has the beneficial effects that: according to the invention, the three groups of elastic clamping sleeves are connected with the screwing shell and the connecting pipe shell, so that pre-tightening force is applied to the male head, and the locking reliability is ensured; the invention is provided with the release mechanism, thereby improving the smoothness of the installation of the joint; the stress pieces are correspondingly arranged at the elastic piece ends of the three groups of elastic clamping sleeves, so that the liquid leakage condition of the pipe joint of the automobile in motion is monitored, and the safety of the new energy automobile battery pack is enhanced.

Drawings

Fig. 1 is an exploded view of the present invention.

Fig. 2 and 3 are schematic diagrams illustrating the fitting and installation of the pipe joint and the male connector.

Fig. 4 is a schematic view of a pipe joint installation structure.

Fig. 5 is a view from a-a of fig. 4.

FIGS. 6 and 7 are schematic views showing the installation of the release mechanism

Fig. 8 is a schematic structural diagram of the elastic ferrule in an open state.

Fig. 9 is a view from direction B-B of fig. 8.

Fig. 10 is a schematic view of a screw housing structure.

Fig. 11 is a schematic view of an installation structure of the elastic ferrule and the stress piece.

Fig. 12 is a schematic view of the installation of the elastic ferrule, the stress piece and the screw housing.

Fig. 13 and 14 are schematic structural views of the adapter shell.

Fig. 15 is a schematic view of the installation of the elastic ferrule, the stress piece and the adapter tube housing.

FIG. 16 is a schematic view of the detachment process of the present invention.

In the figure: 1. the device comprises a screwing shell, 2, a connecting pipe shell, 3, an elastic clamping sleeve, 4, a fixing bolt, 5, a sealing ring, 6, a limiting clamping block, 7, a release button, 8, a male head, 9, a stress sheet, 10, a connecting wire, 11, a connecting wire, 12, a connecting wire, 13, an output end connector, 14, a release spring, 15, a connecting pipe shell groove, 16, a wire hole, 17, a first upright post, 18, a vertical post with a hole of the screwing shell, 19, a second groove, 20, a third upright post, 21, a second upright post, 22, a release button mounting hole, 23, a release mechanism supporting frame, 24, a groove, 25 and a protrusion of the screwing shell; 26 rectangular grooves; 27 elastic-plastic spring.

Detailed Description

To further illustrate the efficacy of the invention, the following detailed description of the embodiments of the invention is provided in conjunction with the accompanying drawings and examples.

Referring to fig. 1, 10, 13 and 14, the invention comprises a screwing shell 1, a connecting pipe shell 2, an elastic cutting sleeve 3 and the like, wherein the outer side wall of the lower end of the screwing shell 1 is provided with an arc-shaped smooth bulge 25 along the circumferential direction, the inner wall of the upper end of the connecting pipe shell 2 is provided with an arc-shaped smooth groove 15 along the circumferential direction, the screwing shell bulge 25 is in matched clamping connection with the connecting pipe shell groove 15 and can rotate, a sealing ring 5 is also embedded in the connecting pipe shell 2, and a male head side cylindrical surface is in contact sealing with the sealing ring 5 when a male head is connected into the connector of the invention.

Referring to fig. 9, 11, 12, 14 and 15, the three elastic ferrules 3 comprise a main body portion, an inner wall of the main body portion is a circular arc surface, one end of the main body portion is provided with an elastic-plastic spring plate 27 with a first upright post 17, and the elastic-plastic spring plate 27 deforms when being stressed and restores to the original shape when not being stressed; the other end is provided with a second upright post 21 with a round hole; the arc surfaces of the main body parts of the three elastic clamping sleeves are tightly attached to the male cylindrical surface under the elastic action of the elastic-plastic elastic sheets, and the three elastic clamping sleeves are sequentially arranged along the circumferential direction of the male cylindrical surface; the elastic-plastic spring plates 27 are respectively provided with one stress piece 9, namely the whole elastic-plastic spring plates comprise three stress pieces 9, and the three stress pieces 9 penetrate through the wire holes 16 reserved in the connector shell 2 through the wires 12 to be connected with the output end connector 13.

Referring to fig. 10, 12, 13, 14 and 15, the screw housing 1 is a hollow cylindrical housing structure, the bottom of the upper end surface of the cylindrical housing structure is provided with three columns 18 with holes, the upper part of the outer side wall of the cylindrical housing structure is provided with two grooves 24, the lower part of the outer side wall of the cylindrical housing structure is provided with a projection 25, and the side wall is provided with a release button mounting hole 22; the axis of the release button mounting hole 22 is perpendicular to the axis of the screw housing 1;

the connecting pipe shell 2 is also a hollow cylindrical shell structure, the inside of the cylindrical shell structure is a step-shaped cylindrical hole along the axis direction, a groove 19 and three columns 20 with internal threads are arranged on the upper end face of the connecting pipe shell 2, columns 17 are arranged at the spring sheet ends of the three elastic cutting sleeves 3, a cylindrical body 21 with a hole is arranged at the main body part end of the elastic cutting sleeve 3, the upper end of each column 17 is connected with the corresponding column 18 with the hole and is provided with a rotational degree of freedom, the lower end of each column 17 is connected with the corresponding groove 19, and the second column 21 with the hole is sleeved on the corresponding column 20 and is fixed by bolts 4 to prevent falling off.

Referring to fig. 1, 4, 10, 11, 13, and 14, a release button mounting hole 22 is formed in the screwing housing 1, a release mechanism supporting frame 23 is formed on the adapter housing 2, the release button 7 is mounted on the mounting hole 22, the release spring 14 and the limiting fixture block 6 are placed on the release mechanism supporting frame 23, one end of the release spring 14 abuts against the release mechanism supporting frame 23, and the other end abuts against the limiting fixture block 6; one end of the limiting fixture block 6 is inserted into the support frame, and the other end of the limiting fixture block is in contact with the inner side wall of the screwing shell 1. The method of using the present invention will be described in detail below.

Referring to fig. 5, the cooling pipe joint is in a locked state, referring to fig. 8, 9 and 10, when the cooling pipe joint is matched with a male connector, firstly, the rectangular groove 24 on the outer side wall of the screwing shell 1 is pinched to rotate anticlockwise, the elastic sheets of the three elastic cutting sleeves 3 are driven by the screwing shell 1 to generate plastic deformation, the main body parts of the three elastic cutting sleeves 3 are provided with round hole upright column ends to rotate under the pulling of the corresponding elastic sheets, the three elastic cutting sleeves 3 simultaneously move outwards along the radial direction, meanwhile, when the axial line of the mounting hole 22 on the screwing shell 1 rotates to coincide with the axial line of the limiting fixture block 6 of the releasing mechanism, the limiting fixture block 6 ejects the releasing button 7 under the action of the elastic force of the releasing spring 14, the limiting fixture block 6 is clamped in the limiting hole, the screwing shell 1 and the connecting pipe shell.

Then, the connector and the male head are installed in a matched position, as shown in fig. 4, the limiting clamping block 6 is pushed out of the limiting hole 22 by pressing the release button 7, as shown in fig. 15, the screwing shell 1 rebounds under the action of elastic sheet elasticity of the three elastic clamping sleeves 3 to be in a closed state, the inner arc surfaces of the three elastic clamping sleeves 3 are abutted against the outer cylindrical surface of the male head at the moment, the male head is radially fixed under the action of the elastic sheet elasticity, the lower end surface of the elastic clamping sleeve 3 is tightly attached to the axially fixed male head, meanwhile, the three strain gauges 9 deform, the automobile ECU analyzes and processes data sent by the three strain gauges 9 due to deformation, and a liquid leakage alarm signal is sent out when the three data have large difference.

Referring to fig. 16, in the first step of installation, the elastic ferrule 3, the stress sheet 9 and the corresponding lead are installed; secondly, mounting the components mounted in the first step in a matching manner with the connector shell 1, and leading a lead to pass through the lead hole 16; thirdly, installing a release mechanism, and placing the release spring 14 and the limiting fixture block 6 in place; fourthly, mounting an output end connector 13; fifthly, mounting a release button on the screwing shell 1; sixthly, installing and screwing the shell 1 to enable the upright post with the hole 18 to be sleeved on the upper end of the upright post at the elastic sheet end of the elastic card sleeve 3.

The undescribed parts of the present invention are consistent with the prior art, and are not described herein.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields, and are within the scope of the present invention.

Claims

1. The utility model provides a quick connector of new energy automobile intelligence leak protection liquid cooling line which characterized in that: comprises a screwing shell (1), a connecting pipe shell (2), three elastic clamping sleeves (3), stress sheets (4) and a male head (8); one end of the male head penetrates through the screwing shell (1) and is installed in the connecting pipe shell (2); each elastic cutting sleeve (3) comprises a main body part, the inner wall of the main body part is a circular arc surface, one end of the main body part is provided with an elastic-plastic elastic sheet with a first upright post (17), and the other end is provided with a second upright post (21) with a circular hole; the arc surfaces of the main body parts of the three elastic clamping sleeves (3) are tightly attached to the cylindrical surface of the male head through the elastic action of the elastic-plastic elastic sheets, and the three elastic clamping sleeves (3) are sequentially arranged along the circumferential direction of the cylindrical surface of the male head; two ends of the first upright post (17) are respectively inserted on the screwing shell and the connecting pipe shell, and a rotational degree of freedom is arranged between the two; the round hole of the second upright post (21) is matched with a third upright post on the connecting pipe shell (2); the upper end face of the main body part of the elastic clamping sleeve (3) is clamped with the inner end face of the male head to realize axial fixation; the outer side wall of the main body part is provided with a rectangular groove (26) to avoid interference with the main body part when the elastic-plastic elastic sheet of the elastic clamping sleeve deforms; and the outer side wall of the elastic-plastic elastic sheet is provided with a stress sheet (4); the stress sheet (4) is connected with an external ECU through a lead.

2. The quick connector of an anti-leakage cooling pipeline as claimed in claim 1, wherein: and the outer side wall of the lower end of the screwing shell (1) is provided with a circular arc smooth screwing shell bulge (25) along the circumferential direction, the inner wall of the upper end of the connecting pipe shell (2) is provided with a circular arc smooth connecting pipe shell groove (15) along the circumferential direction, and the screwing shell bulge (25) is fixedly clamped with the connecting pipe shell groove (15) in a matching manner.

3. The quick connector of an anti-leakage cooling pipeline as claimed in claim 1, wherein: the inner wall of the upper end of the screwing shell (1) is provided with three cylindrical columns (18) with round holes, the round holes of the three cylindrical columns (18) are matched with one ends of the three first columns (17), and the three first columns and the first columns have rotational freedom; the other end of the first upright post (17) is inserted in the groove of the adapter shell.

4. The quick connector of an anti-leakage cooling pipeline as claimed in claim 1, wherein: still include release mechanism, release mechanism include support frame (23), spacing fixture block (6), release spring (14) and release button (7) revolve to twist casing (1) lateral wall and be equipped with one spacing hole (22), spacing hole (22) place release button (7), be equipped with support frame (23) that have the circular port on taking over casing (2), support frame (23) and release spring (14), spacing fixture block (6) cooperation, spacing fixture block (6) release spring (14) elasticity effect down with revolve to twist casing (1) inside wall contact.

5. The quick connector of claim 4, wherein: and an arc-shaped inclined plane is arranged at the contact end of the limiting clamping block (6) of the release mechanism and the screwing shell (1).

6. The quick connector of an anti-leakage cooling pipeline as claimed in claim 1, wherein: the lower end face of the connecting pipe shell (2) is provided with a circular hole which is connected with a stress sheet (4) connecting wire output end connector (13).

7. The quick connector of an anti-leakage cooling pipeline as claimed in claim 1, wherein: the pipe connecting shell is characterized in that an arc-shaped groove is formed in the end face of the inner side wall of the pipe connecting shell (2) in the circumferential direction and used for placing a sealing ring (5).

8. The quick connector of an anti-leakage cooling pipeline as claimed in claim 1, wherein: and a chamfer is not arranged between the lower end face of the main body part of the elastic clamping sleeve (3) and the side face of the main body part of the elastic clamping sleeve, so that the arc surface of the elastic clamping sleeve is completely attached to the male cylindrical surface.

9. The quick connector of an anti-leakage cooling pipeline as claimed in claim 1, wherein: the inner arc surface of the upper end surface of the main body part of the elastic clamping sleeve (3) is provided with an inclined surface structure.

10. The quick connector of an anti-leakage cooling pipeline as claimed in claim 1, wherein: the outer side wall of the screwing shell is provided with two rectangular grooves for screwing the screwing shell.